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1.00ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG842651305

Shape and cutting style on the report: Round brilliant

Certificate IGI LG842651305

Diamond specifications and retailer prices

From $263 NZD
As of November 5, 2026
Save $2,192 NZD (89%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,456 NZD at MOH London · As of November 5, 2026
View at MOH London

About this 1ct lab-grown round diamond

This 1ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG842651305 or 842651305. Listed at 9 retailers as of November 5, 2026, with prices from $263 to $2,456, a $2,192 spread on the same certified stone. MOH London lists it at $2,456. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.00
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.6°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG842651305
Dimensions6.46 × 6.49 × 3.91 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.46 mm6.49 mm1.00 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG842651305
Side View
Table 60.0%Crown 32.6°Girdle: MediumPavilion 41.2°Culet: NoneDepth 60.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $2,456 NZD|Low: $263 NZD|High: $2,533 NZD|Avg: $885 NZD|+68.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 8$263 NZD
Retailer 5$400 NZD
Retailer 6$471 NZD
Retailer 3$491 NZD
Retailer 2$571 NZD
Retailer 7$1,002 NZD
Retailer 9$1,048 NZD
Retailer 4$1,747 NZD
MOH London$2,456 NZD

27 data points across 9 retailers

9 retailers$263 NZD to $2,456 NZD

A
Cheapest Retailer
-
$263 NZD
Final sale: no returns
B+
Retailer 2
-
$400 NZD
View
A
Retailer 3
-
$471 NZD
View
A
Retailer 4
-
$491 NZD
View
A
Retailer 5
-
$571 NZD
View
B
Retailer 6
-
$1,002 NZD
View
B
Retailer 7
-
$1,048 NZD
View
B
Retailer 8
-
$1,747 NZD
View
Most Expensive
C
MOH London
LG842651305 · Nov 5
$2,456 NZD
£1,087 GBP
View
8 more retailers have this diamond
Prices start from $263 NZDSave up to $2,192 NZD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.00ct Round
$263 NZD